Fostex 6301BEAV Manuel utilisateur

Service Manual

PersonalMonitorSelf-Powered

6301B

SAFETY INSTRUCTIONS

Read instructions - All the safety and operating instruc-

tions should be read before the appliance is operated.

Retain instructions - The safety and operating instructions

should be retained for future reference.

Heed warnings - All warnings on the appliance and in the

operating instructions should be adhered to.

Follow instructions - All operating and use instructions

should be followed.

Water and Moisture - The appliance should not be used

near water - for example, near a bathtub, washbowl,

kitchen sink, laundry tub, in a wet basement, or near a

swimming pool, and the like.

Carts and Stands - The appliance should be used only

with a cart or stand that is recommended by the manufac-

turer.

An appliance and cart combination should be moved with

care. Quick stops, excessive force, and uneven surfaces

may cause the appliance and cart combination to over-

turn.

Wall or Ceiling Mounting - The appliance should be

mounted to a wall or ceiling only as recommended by the

manufacturer.

Ventilation - The appliance should be situated so that its

location or position does not interfere with its proper ven-

tilation. For example, the appliance should not be situ-

ated on a bed, sofa, rug, or similar surface that may block

the ventilation openings; or, placed in a built-in installa-

tion, such as a bookcase or cabinet that may impede the

flow of air through the ventilation openings.

Heat - The appliance should be situated away from heat

sources such as radiators, heat registers, stoves, or other

appliances (including amplifiers) that produce heat.

Power Sources - The appliance should be connected to a

power supply only of the type described in the operating

instructions or as marked on the appliance.

Grounding or Polarization - The precautions that should

be taken so that the grounding or polarization means of

an appliance is not defeated.

Power Cord Protection - Power supply cords should be

routed so that they are not likely to be walked on or

pinched by items placed upon or against them, paying

particular attention to cords at plugs, convenience recep-

tacles, and the point where they exit from the appliance.

Cleaning - The appliance should be cleaned only as rec-

ommended by the manufacturer.

Nonuse Periods - The power cord of the appliance should

be unplugged from the outlet when left unused for a long

period of time.

Object and Liquid Entry - Care should be taken so that

objects do not fall and liquids are not spilled into the en-

closure through openings.

Damage requiring Service - The appliance should be ser-

viced by qualified service personnel when:

Servicing - The user should not attempt to service the ap-

pliance beyond that described in the operating instruc-

tions. All other servicing should be referred to qualified

service personnel.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

TO PREVENT ELECTRIC SHOCK, MATCH

WIDE BLADE OF PLUG TO WIDE SLOT,

FULLY INSERT.

POUR ÉVITER LES CHOCS ÉLECTRIQUES,

INTRODUIRE LA LAME LA PLUS LARGE DE

LA FICHE DANS LA BORNE CORRE-

SPONDANTE DE LA PRISE ET POUSSER

JUSQU' AU FOND.

CAUTION:

ATTENTION:

The exclamation point within an equilateral

triangle is intended to alert the user to the

presence of important operating and mainte-

nance (servicing) instructions in the literature

accompanying the appliance.

The lightening flash with arrowhead symbol,

within an equilateral triangle, is intended to

alert the user to the presence of uninsulated

“dangerous voltage” within the product's en-

closure that may be of sufficient magnitude to

constitute a risk of electric shock to persons.

“WARNING”

“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOIS-

TURE.”

The power supply cord or the plug has been damaged;

Objects have fallen, or liquid has been spilled into the

appliance; or

The appliance has been exposed to rain; or

The appliance does not appear to operate normally or

exhibits a marked changed in performance; or

The appliance has been dropped, or the enclosure

damaged.

10.

11.

12.

13.

14.

15.

16.

17.

6301B/BX/BE

TABLE OF CONTENTS

1. SPECIFICATIONS ........................................................................................ 3

2. OVERALL EXPLODED VIEW.................................................................. 4

3. PCB ASSY AND PARTS LIST................................................................. 6

4. PATTERN DRAWING.................................................................................. 8

5. CIRCUIT DIAGRAMS.................................................................................. 9

USA/CND : 0260001 and onwards

EUR : 0660001 and onwards

UK : 0760001 and onwards

JPN : 1060001 and onwards

NOTES

• Adjustment procedures, parts list, pattern drawing and circuit diagrams are given in this manual to assist

the service technician in maintaining the 6301B.

• For your information, this service manual complies to the 6301B with the followings are the serial

number of 6301B.

1. SPECIFICATIONS

SPEAKER ( Internal )

Type 10cm Full Range Single Cone

Impedance 4 Ω

Efficiency 84 dB/W (1m)

AMPLIFIER

Normal Input Level -10dBV

Output more than 10Wrms ( 8 Ω load )

Frequency Response 20 ~ 50 kHz +0dB-3dB

Distortion 0.05 % or less ( at 1W output )

Residual Noise -70dBV (0.3mV)

Input Sensitivity Unbalanced type : -6dBV (0.5Vrms)

Balanced type : +4dBm (1.2Vrms)

Input Impedance Unbalanced type : Higher than 20kΩ

Balanced type : Higher than 10kΩ

GENERAL

Dimensions 120 (W) ×188 (H) ×118 (D) mm

Weight 3.0 kg

Power supply

JPN 100 VAC, 50/60 Hz

USA/CND 120 VAC, 60 Hz

EUR/UK 230 VAC, 50/60 Hz

Power consumption 33 W

6301B/BX/BE

PTT

3x8 Ni

PTP WH

3x10 Bzn

BTT

4x12 Bzn

BTT

4x12 Bzn

BTT

4x12 Bzn

PTT

4x8 Bzn

PTT

4x8 Bzn

BTT

4x12 Bzn

P 4x10 Bzn

BTT

4x12 Bzn

PTT

3x6 Czn

PTT

3x6 Czn

15 23

157

2. OVERALL EXPLODED VIEW

6301B/BX/BE

Ref. No. Part No. Description

1 8278001000 Speaker, 10F05AV

2 8216034000 Packing, Speaker

3 8220462100 Cover, Speaker, B3/X/E

4 8226050000 Button, Push, Power, B3/X/E

5 8226067000 Knob, Pot, B3/X/E

6 8210020100 Box, Speaker, B3/X/E (192631)

7 8216213002 Sound Absorbent, B3/X/E

8 8242041200 Trans, Power, 120V, B3/X/E

8242042001 Trans, Power, 220V/240V, B3/X/E

8242040200 Trans, Power, 100V, B3/X/E

9 8274209000 PCBAssy, Trans, B3X

10 8274216000 PCBAssy, PowerAmp, B3/X/E

11 8220464000 Bracket, PCB, B3/X/E

12 8239002000 Insulator, IC, B3/X/E

13 8274210000 PCBAssy, JK2, B3/X/E

14 8274211000 PCBAssy, LineAmp, B3

8274212000 PCBAssy, LineAmp, B3X

8274213000 PCBAssy, LineAmp, B3E

15 8216198100 Gasket, Rear, B3/X/E

16 8220463201 Panel, Rear, B3 (192630)

8220463202 Panel, Rear, B3X/E (192629)

17 8216196000 Cover, XLR, B3X/E

18 8245392000 Conn, XLR, B3X/E

19 8207000209 Bushing, B3/X/E

20 8276217000 Cord, Power, B3/X/E, CSA

8276215000 Cord, Power, B3/X/E, CND

8276216000 Cord, Power, B3/X/E, EUR

8276879000 Cord, Power, B3/X/E, UK

8276003000 Cord, Power, B3/X/E, JPN

21 8253014008 SW, Power, B3/X/E

22 8256075005 Spark-Killer, 0.0047µF

23 8274214000 PCBAssy, LED, B3/X/E

24 8274215000 PCB Assy, VR, B3/X/E

6301B/BX/BE

3. PCB ASSY AND PARTS LIST

PCB Assy PowerAmp 8274216000

Ref. No. Part No. Description B BX BE

C001 8232050471 CAP, CER, 50V, 470pF, 5% * * *

C002 8232098105 CAP, ALU, 50V, 1µF, 20% * * *

C003, 004 8232097227 CAP, ALU, 35V, 220µF, 20% * * *

C005 8232095476 CAP, ALU, 16V, 47µF, 20% * * *

C006 8232026123 CAP, PES, 50V, 0.012µF, 5% * * *

C007 8232026104 CAP, PES, 50V, 0.1µF, 5% * * *

C008, 009 8232074000 CAP, CER, 50V, 0.1µF, 20% * * *

C010 8232026103 CAP, PES, 50V, 0.01µF, 5% * * *

C011, 012 8232133478 CAP, ALU, 35V, 4700µF, 20% * * *

D001 8234001607 D, STACK, 2W02G * * *

R001 8230004102 RES, CARBON, 1/4W, 1K, 5% * * *

R002 8230004563 RES, CARBON, 1/4W, 56K, 5% * * *

R004 8230004122 RES, CARBON, 1/4W, 1.2K, 5% * * *

R005 8230004563 RES, CARBON, 1/4W, 56K, 5% * * *

R006 8230004153 RES, CARBON, 1/4W, 15K, 5% * * *

R007 8230004102 RES, CARBON, 1/4W, 1K, 5% * * *

R008 8230004100 RES, CARBON, 1/4W, 10, 5% * * *

R010 8230004222 RES, CARBON, 1/4W, 2.2K, 5% * * *

U001 8234045600 IC, PowerAmp, TDA2050 * * *

PCB Assy LineAmp 8274211000

Ref. No. Part No. Description B BX BE

C021, 022 8232095106 CAP, ALU, 16V, 10µF, 20% *

C021, 022 Jumper *

C023 8232095106 CAP, ALU, 16V, 10µF, 20% * *

C024, 025 8232096476 CAP, ALU, 25V, 47µF, 20% * *

R021 8230004103 RES, CARBON, 1/4W, 10K, 5% *

R022 8230004103 RES, CARBON, 1/4W, 10K, 5% *

R022 8230004102 RES, CARBON, 1/4W, 1K, 5% *

R023 8230004392 RES, CARBON, 1/4W, 3.9K, 5% * *

R024 8230004103 RES, CARBON, 1/4W, 10K, 5% *

R024 Jumper *

R025 8230004392 RES, CARBON, 1/4W, 3.9K, 5% * *

R026 8230004103 RES, CARBON, 1/4W, 10K, 5% *

R027 8230004392 RES, CARBON, 1/4W, 3.9K, 5% * *

R028, 029 8230004102 RES, CARBON, 1/4W, 1K, 5% * *

U002 82360212000 IC, Analog, NJM4560DX * *

DZ001, 002 8234503959 D, ZENER, MTZ J 15C * *

CN002 8245053003 Conn, JACK, 8263, 3P, WHT * *

JK001 8245103000 Conn, Phone, B/BX/BE *

JP006, 007 Jumper *

6301B/BX/BE

PCB Assy JK2 8274210000

Ref. No. Part No. Description B BX BE

JK002 8245103000 Conn, Phone, B/BX/BE * * *

PCB Assy VR 8274215000

Ref. No. Part No. Description B BX BE

VR001 8240212002 POT, 50KA, B/BX/BE * * *

PCB Assy LED 8274214000

Ref. No. Part No. Description B BX BE

D002 8234006400 OPT, LED, RED, GL-3PR8 * * *

PCB Assy TRANS 8274209000

Ref. No. Part No. Description B BX BE

R031, 032 8230004512 RES, CARBON, 1/4W, 5.1K, 5% *

R034 8230004102 RES, CARBON, 1/4W, 1K, 5% *

T002 8242099000 TRANS, LINE, BX *

CN002 8245053003 Conn, JACK, 8263, 3P, WHT *

6301B/BX/BE

4. PATTERN DRAWING

6301-104 VR

6301-102 LINE AMP 6301-105 LED

VR1W41

W31

JK2

OIG

6301-103 G I/P S G

W51

R32

6301-106

TRANS

6301-101

POWER AMP

R34

R31

R23

R27

R29R28

W21

V-V+SG

ZD2ZD1

C23JK1JP7

JP6

R24

R22C24

CN2/W26

C25

R25

R26

R21

C22

C21

ORG

BRN

YEL

RED

BLK

W62 G

CN1

W12

C11

C12

R10 D1

OIGSPKTO W13

W15 W11

ORG BLKORG

W10

C10

R5 U1

W14

V-V+SG

G I/P S G

6301B/BX/BE

6301B

5. CIRCUIT DIAGRAMS

6301-104

4 W41

VR1

50KA

6301-101

W14

56K

0.1

1/50

220/35

+VCC1

TDA2050

3W13

6301-103

JK2

W31 EXT SP

SP1

C10

0.01

W10

PGND1

470P

56K

0.1

220/35

-VCC1

6301-102

W21

JK1 2

W12

15K

47/16

1.2K

0.012 R7

0.1

SGND1

6301-105

POWER LED

W51

R10

2.2K 2

W15

+VCC1

PGND1

AC POWER IN

ORG

BLK

ORG

W11

C11

4700/35

C12

4700/35

+VCC1

PGND1 SGND1

-VCC1

6301B/BX/BE

6301BX

ORG

W62

6301-106

BRN

R31

5.1K

R34

RED

WHT

GND

BALANCE

INPUT

2 1

6301-102

RED

R32

5.1K

CN1

WIPT

6301-104

YEL

BLK 2

W41

VR1

50KA

6301-101 C3

220/35

+VCC1

EXT SP

6301-103

SP1

JK2

3W13

W31

C10

0.01

0.1

0.1 R8

TDA2050

470P R2

56K

1/50

R27

3.9K

C23

10/16

W14

SGND

5 7

U2B

4560

R23

3.9K

R25

3.9K

JP6

R22

+VCC

-VCC

U2A

4560

R24

10K

C21

NON

CN2/W26

R21

NON SGND

JP7

UNBALANCE

INPUT

JK1

ZD1

15B2

C22

NON

+VCC

SGND

SGND R28

R26

NON

1.2K

56K

15K

0.012 R7

0.1

220/35

-VCC1

W10

PGND1

6301-105

+VCC1

SGND1

47/16

W12

W21

R29

C24

47/25

C25

47/25

ZD2

15B2

SGND

-VCC

ORG

T1 W11

R10

2.2K

+VCC1

POWER LED

W15

PGND1

W51

C11

4700/35

C12

4700/35

-VCC1

SGND1PGND1

BLK

ORG

AC POWER IN

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